Stock-wind-off mechanism



Aug. 14, ma 1,681,064

H. D. STEVENS STOCK WIND-OFF HECHANISH Filed March 18, 1927 2Sheets-Sheet 1 ATTORNEYJ.

INVENTOR. Hamas D. Jrfvf/vs Aug. 14, 1928` A H D STEVENS STOCK WIND-OFFMECHANISM Flled March 18, 1927 Patented Aug. 14, 1928.

UNITED STATES HORACE D. sTEvENs, OEARRON, OHIO, ASSIGNOR` To TEEEIRESTONE TIRE AND RUBBER COMPANY, OE AKRON, OHIO, A CORPORATION oEOHIO.

sTocx-wrNn-OEE MEOHANISM.'

Application led latch 18, 1927. Serial No. 176,445;

This invention relates to a Wind-o` mechanism `for power driving stock`supply reels or rolls in'teeding strip band or web material of a lowtensile strength into a driven` apparatus. i t

The purpose of this invention 1s p rovide power driven `means forunwinding strip stock from a supply reel where said stock is of such alow tensile strength that l0 unwinding the same from thev supply reelmerely by pulling on the stock wouldresult in breaking the same.Suitable cha-1n and sprocket driving means are therefore provided forwinding'up on a reel the liner fabric used to separate the layers ofstock and at the same time unwinding the supply reel. The last-namedreel, however cannot have a definite speed ratio with respect to auniform speed driven apparatus, dueto the decreasing circumference ofsaid reel.

It is accordingly necessary to provide a variable speed mechanism andregulate the tension and quantity of stock fed into said ap-` paratus. Y

An object of the invention, therefore, 1s to devise power driven meansfor unwmdmg strip stock from aA supply roll.v A further Object is toprovide means for varyin the speed ot' the driven means, the speed elnggoverned by thetension in the stock. Another object is lto devise meansforrguiding any one ot a pluralit of laterally spaced flat strips on toa sing e 'flat channel.

The foregoing andother objects are obf tained by the device illustratedin the accompanying drawings and described below. It is to be understoodthat the device is not limited to the specifcformthereof disclosedherein.

Of the accompanying drawings:

Figure 1 is a side elevation of a device embodying the principles of theinvention; and y Figure 2 is a plan view thereof, an upper portion ofthe device beingomitted.

Referring more particularly to the drawings, 10 represents a known typeof power driven press for binding together a number of yvarious stripsof Vmaterial to be laminated,

and comprises pressure rollers 11, driven througha suitable train ofchains, sprocketsA and reducing gears 12 by a motor 13. Adjacent rollers11 are a number of guide Vplates 14, 15 and 16, for guiding variousstrips or bands thereover through rollers 11,` a strip 17 being shownonly on the lowermost guide plate. This strip is being fed from a supplyreel 18 with a liner or' fabric 19 wound between the turns ofStripmaterial to prevent the latter adhering, thel liner being rewoundon reel 20 after the strip 17 is taken therefrom. If desired, a numberof narrow strips 17 may be laterally spaced along a relatively wide reeland removed therefrom one at a time theremainder ot the strips beingrewound with the liner.` Power driven means are provided for unwindingthe stock, sincepulling on the strip material to unwind the reel islikely to damage, stretch, or break the strip, especially vwhere thelatter is composed of uncured gum, thin rubber sheets, rubberized v orplain fabric bands of low tensile strength, or the like. A chain 21driven by sprocket 22, is trained over idler 23 and Aover sprockets 24and 25, journaled on shafts 26 and 27 carrying reels 18 and 20,respectively, for rotating' the latter. Motor 13vis geared to pulley 28which drives pulley-29 by abelt 30, pulley 29 rotating sprocket 22through gears 32. Since reels 26 and 27 cannot be driven at a uniformrate, a variable speed governed by the tension in the strip material isobtained by passing strip 17 under a counterbalanced tension roll 33supported on arms 34 and 35 pivoted'to frame 36 a which frame alsocarries reels 18 and 20.( A pivoted lever 37 is connected to arm 35 bylalink 38 and is provided with an arm 39 carrying an idler pulley 40 forapplying more or less tension in belt 30 to obtain greater or less speedin pulley 29, belt 30' being normally loose enough so that it willslip'around pulley 29 without rotating the same when no pressure isapplied Vby idler 40.

Clutches 11 and 42 splined to shafts 26 and 27, respectively, areadapted tobe engaged with sprockets 2ey and 25 for rotating reels 18 and20. The clutchis engaged only for turning the reel `ontonvhich the lineris being wound the other reel being allowed to idle. Shafts 26 and Q7are respectively provided with drums 43 and 44. either of weightedfriction belts 45 or 46 being adapted to be thrown over the drum whichis idling to provide tension on the reel from which stock is beingdrawn. Guide rollers l?, disposed transversely ol the path of strip 17in a vertical plane, receive the strip from liner 119 at any angle andguide it onto guide plate 16, the path of a strip 17 from the edge ofthe liner being shown in dotted lines.

ln operation chain :2l is rotated in the direction indicated by thearrow in Figure l and, clutch 42 being thrown into engagement withsprocket Q5, reel Q() will be rotated to wind up liner 19 from reel 1S.A strip 17 of stock taken from the liner passes in the lorm of a festoonunder tension roll 33, through guide rolls a7 and over guide plate 1G.The strip linally passes between rollers ll with other strips with whichit is to be associated. lt the reels are rot-ating too slowly, theamount of the strip material in the iestoou will be decreased and thetension in the strip produced thereby will raise roller 33 which in turnwill canse idler L'l0 to be forced against belt 30 and speed up the reeldriving means. lVhen the stock is being ied too rapidly, roller 33 willdrop and cause belt 30 to be loosened, thus slowing down the reeldriving means. When the end of the liner is reached its direction isreversed by throwing out clutch 43 and throwing clutch l2 intoengagement with sprocket 2l, the next strip 17 then being removed fromthe liner before the latter leaves reel 20.

Obviously the liner receivingr reel may be omitted if the strip materialdoes not require a liner, in which case the clutch is thrown intoengagement on the sprocket driving the supply reel.

Other modifications oi the invention may be resorted to withoutdeparting from the spirit thereof or the scope of the appended claims.

What is claimed is:

l. The combination of a wind-olf mechanism for stripfmaterial, withdriven apparatus into which said strip is drawn, which comprises arotatably supported supply reel carrying a. plurality of laterallyspaced bands of said strip material with a liner, a rotatably supportedliner receiving reel adjacent thereto, means intermediate the apparatusand said liner receiving reel for driving the latter from saidapparatus, means riding upon a single band of the strip material betweenthe reels and said apparatus for varying the speed of the liner reel inaccordance with the tension in the strip material, and means forrotating the reels in either kot reverse directions, whereby as theliner end is reached the directions of the reels may be reversed and theliner receiving reel may become the supply reel as another band ot stripmaterial is removed therefrom.

Q. The combination of a wind-oil' mechanism for strip material, withdriven apparatus into which said strip is drawn, which comprises arotatably supported supply rcel carryingr a plurality oi. laterallyspaced bands ot said strip material with a. liner, a rotatably supportedliner receiving reel adjacent thereto. means intermediate the apparatusand said lirici' receiving reel for driving the latter from saidapparatus, means for feeding a single band ot' the strip material tosaid apparatus from the supply reel, and means for rotating the reels ineither of reverse directions whereby as the liner end is reached thedirections of the reels may be reversed and the liner receiving reel maybecome the supply reel as another of the bands of strip material isremoved therefrom.

3. The combination of a wind-ofi' mechanism for strip material, withdriven apparatas into which said strip is drawn, which comprises arotatably supported supply reel carrying a ilurality of laterally spacedbands ot said strip material with a liner, a rotatably supported linerreceiving reel adjacent thereto, means intermediate the apparatus andsaid liner receiving reel for driving the latter from said apparatus,means tor guiding into said apparatus a` strip taken from any transverseposition on said supply reel, and means tor rotating the reels in eitherof reverse directions, whereby as the liner end is reached thedirections of the reels may be reversed and the liner receiving reel maybecome the supply reel as :mother band of strip material is removedtherefrom.

4. The combination of a wind-olf mechanism for strip material, withdriven appa- `atus into which said strip is drawn, which comprises arotatably supported supply reel carrying a plurality of laterally spacedbands ot said strip material with a liner, a rotatably supported linerreceiving reel adjacent thereto. means intermediate the apparatus andsaid liner receiving reel for driving the latter from said apparatus,means for guiding into said apparatus a strip taken from any transverseposition on said supply rcel, means riding upon a single band ot' thestrip material between the reels and said apparatus for varying thespeed of the liner reel in accordance with the tension in the stripmaterial, and means for rotating the reels in either of reversedirections, whereby as the liner end is reached the directions of thereels may be reversed and the liner receiving reel may become the supplyrcel as another band of strip material is removed therefrom.

lll() 5. The combination of a wind-off mechanism for strip material,with driven apparatus into which said strip is drawn, which comprises arotatably supported supply reel 5 carr ing a plurality of laterallyspaced ban s of said strip material, means intermediate the apparatusand said supply reel for driving the latter from said apparatus,

and means for guiding to the same point into said apparatus. a striptaken from an 10 transverse position on said supply ree whereby as theend of the strip is reached,

a strip from another transverse position v of the reel may be removedtherefrom.

HORACE D. STEVENS.

